Officials are probing how a 51-year-old highway bridge came to collapse in the Italian port city of Genoa yesterday, killing at least 26 people and injuring 16 others as it sent dozens of vehicles tumbling into a heap of concrete and twisted steel.

Sydney festival-goers warned about drugs

Authorities have declared a "war on drugs" ahead of a popular New Year's Day music festival in Sydney.

Police have promised they'll be there with sniffer dogs and will catch anyone trying to bring illegal drugs into Field Day at Sydney's Domain on Sunday.

"Those thinking of bringing substances into the event are therefore reminded there will be overt and covert police patrolling the festival, which will include the use of drug-detection dogs," Detective Inspector Andrew Marks said on Saturday.